Aerator



FIG. 1 is an isometric view of the aerator;

FIG. 2 is a side view of the aerator;

FIG. 3 is a side view of the aerator opposite the side view of theaerator shown in FIG. 2;

FIG. 4 is a top side view of the aerator; and,

FIG. 5 is a cross-sectional view of the aerator taken along line 5-5 inFIG. 4.

CLAIM The ornamental design for an aerator, as shown and described.